QR Code, or Quick Response Code, is one of the most popular 2D barcodes available today and is used in a variety of industries including commercial tracking applications and mobile phone tagging applications. QR Code offers more data storage than linear (1D) barcodes, up to 2,953 bytes, 4,296 alphanumeric or 7,089 numeric digits, and includes Error Correction Code (ECC) for error-free reading even when a symbol is partially lost or destroyed.
Sample Barcode:
Uses Error Correction Code (ECC) to reconstruct damaged barcode symbols
Stores up to 2,953 byte, 4,296 alphanumeric or 7,089 numeric digits in one QR Code barcode
Leadtools.Barcode support:
LEADTOOLS symbology identifier |
BarcodeSymbology.QR |
Data class |
QRBarcodeData |
Read options |
QRBarcodeReadOptions |
Write options |
QRBarcodeWriteOptions |
The QR standard specifies 40 different sizes for the QR barcode. The maximum data capacity varies, depending on the size of the barcode and its Error Correction level.
The following tables contain information for writing 2D QR barcodes:
Model (QRBarcodeSymbolModel) | Modules | ECC Level (QRBarcodeECCLevel) | Data Bits | Numeric | Alphanumeric | Binary | Kanji |
---|---|---|---|---|---|---|---|
1 | 21x21 | L | 152 | 41 | 25 | 17 | 10 |
M | 128 | 34 | 20 | 14 | 8 | ||
Q | 104 | 27 | 16 | 11 | 7 | ||
H | 72 | 17 | 10 | 7 | 4 | ||
2 | 25x25 | L | 272 | 77 | 47 | 32 | 20 |
M | 224 | 63 | 38 | 26 | 16 | ||
Q | 176 | 48 | 29 | 20 | 12 | ||
H | 128 | 34 | 20 | 14 | 8 | ||
3 | 29x29 | L | 440 | 127 | 77 | 53 | 32 |
M | 352 | 101 | 61 | 42 | 26 | ||
Q | 272 | 77 | 47 | 32 | 20 | ||
H | 208 | 58 | 35 | 24 | 15 | ||
4 | 33x33 | L | 640 | 187 | 114 | 78 | 48 |
M | 512 | 149 | 90 | 62 | 38 | ||
Q | 384 | 111 | 67 | 46 | 28 | ||
H | 288 | 82 | 50 | 34 | 21 | ||
5 | 37x37 | L | 864 | 255 | 154 | 106 | 65 |
M | 688 | 202 | 122 | 84 | 52 | ||
Q | 496 | 144 | 87 | 60 | 37 | ||
H | 368 | 106 | 64 | 44 | 27 | ||
6 | 41x41 | L | 1,088 | 322 | 195 | 134 | 82 |
M | 864 | 255 | 154 | 106 | 65 | ||
Q | 608 | 178 | 108 | 74 | 45 | ||
H | 480 | 139 | 84 | 58 | 36 | ||
7 | 45x45 | L | 1,248 | 370 | 224 | 154 | 95 |
M | 992 | 293 | 178 | 122 | 75 | ||
Q | 704 | 207 | 125 | 32 | 20 | ||
H | 528 | 154 | 93 | 64 | 39 | ||
8 | 49x49 | L | 1,552 | 461 | 279 | 192 | 118 |
M | 1,232 | 365 | 221 | 152 | 93 | ||
Q | 880 | 259 | 157 | 108 | 66 | ||
H | 688 | 202 | 122 | 84 | 52 | ||
9 | 53x53 | L | 1,856 | 552 | 335 | 230 | 141 |
M | 1,456 | 432 | 262 | 180 | 111 | ||
Q | 1,056 | 312 | 189 | 130 | 80 | ||
H | 800 | 235 | 143 | 98 | 60 | ||
10 | 57x57 | L | 2,192 | 652 | 395 | 271 | 167 |
M | 1,728 | 513 | 311 | 213 | 131 | ||
Q | 1,232 | 364 | 221 | 151 | 93 | ||
H | 976 | 288 | 174 | 119 | 74 | ||
11 | 61x61 | L | 2,592 | 772 | 468 | 321 | 198 |
M | 2,032 | 604 | 366 | 251 | 155 | ||
Q | 1,440 | 427 | 259 | 177 | 109 | ||
H | 1,120 | 331 | 200 | 137 | 85 | ||
12 | 65x65 | L | 2,960 | 883 | 535 | 367 | 226 |
M | 2,320 | 691 | 419 | 287 | 177 | ||
Q | 1,648 | 489 | 296 | 203 | 125 | ||
H | 1,264 | 374 | 227 | 155 | 96 | ||
13 | 69x69 | L | 3,424 | 1,022 | 619 | 425 | 262 |
M | 2,672 | 796 | 483 | 331 | 204 | ||
Q | 1,952 | 580 | 352 | 241 | 149 | ||
H | 1,440 | 427 | 259 | 177 | 109 | ||
14 | 73x73 | L | 3,688 | 1,101 | 667 | 458 | 282 |
M | 2,920 | 871 | 528 | 362 | 223 | ||
Q | 2,088 | 621 | 376 | 258 | 159 | ||
H | 1,576 | 468 | 283 | 194 | 120 | ||
15 | 77x77 | L | 4,184 | 1,250 | 758 | 520 | 320 |
M | 3,320 | 991 | 600 | 412 | 254 | ||
Q | 2,360 | 703 | 426 | 292 | 180 | ||
H | 1,784 | 530 | 321 | 220 | 136 | ||
16 | 81x81 | L | 4,712 | 1,408 | 854 | 586 | 361 |
M | 3,624 | 1,082 | 656 | 450 | 277 | ||
Q | 2,600 | 775 | 470 | 322 | 198 | ||
H | 2,024 | 602 | 365 | 250 | 154 | ||
17 | 85x85 | L | 5,176 | 1,548 | 938 | 644 | 397 |
M | 4,056 | 1,212 | 734 | 504 | 310 | ||
Q | 2,936 | 876 | 531 | 364 | 224 | ||
H | 2,264 | 674 | 408 | 280 | 173 | ||
18 | 89x89 | L | 5,768 | 1,725 | 1,046 | 718 | 442 |
M | 4,056 | 1,212 | 734 | 504 | 310 | ||
Q | 3,176 | 948 | 574 | 394 | 243 | ||
H | 2,504 | 746 | 452 | 310 | 191 | ||
19 | 93x93 | L | 6,360 | 1,903 | 1,153 | 792 | 488 |
M | 5,016 | 1,500 | 909 | 624 | 384 | ||
Q | 3,560 | 1,063 | 644 | 442 | 272 | ||
H | 2,728 | 813 | 493 | 338 | 208 | ||
20 | 97x97 | L | 6,888 | 2,061 | 1,249 | 858 | 528 |
M | 5,352 | 1,600 | 970 | 666 | 410 | ||
Q | 3,880 | 1,159 | 702 | 482 | 297 | ||
H | 3,080 | 919 | 557 | 382 | 235 | ||
21 | 101x101 | L | 7,456 | 2,232 | 1,352 | 929 | 572 |
M | 5,712 | 1,708 | 1,035 | 711 | 438 | ||
Q | 4,096 | 1,224 | 742 | 509 | 314 | ||
H | 3,248 | 969 | 587 | 403 | 248 | ||
22 | 105x105 | L | 8,048 | 2,409 | 1,460 | 1,003 | 618 |
M | 6,256 | 1,872 | 1,134 | 779 | 480 | ||
Q | 4,544 | 1,358 | 823 | 565 | 348 | ||
H | 3,536 | 1,056 | 640 | 439 | 270 | ||
23 | 109x109 | L | 8,752 | 2,620 | 1,588 | 1,091 | 672 |
M | 6,880 | 2,059 | 1,248 | 857 | 528 | ||
Q | 4,912 | 1,468 | 890 | 611 | 376 | ||
H | 3,712 | 1,108 | 672 | 461 | 284 | ||
24 | 113x113 | L | 9,392 | 2,812 | 1,704 | 1,171 | 721 |
M | 7,312 | 2,188 | 1,326 | 911 | 561 | ||
Q | 5,312 | 1,588 | 963 | 661 | 407 | ||
H | 4,112 | 1,228 | 744 | 511 | 315 | ||
25 | 117x117 | L | 10,208 | 3,057 | 1,853 | 1,273 | 784 |
M | 8,000 | 2,395 | 1,451 | 997 | 614 | ||
Q | 5,744 | 1,718 | 1,041 | 715 | 440 | ||
H | 4,304 | 1,286 | 779 | 535 | 330 | ||
26 | 121x121 | L | 10,960 | 3,283 | 1,990 | 1,367 | 842 |
M | 8,496 | 2,544 | 1,542 | 1,059 | 652 | ||
Q | 6,032 | 1,804 | 1,094 | 751 | 462 | ||
H | 4,768 | 1,452 | 864 | 593 | 365 | ||
27 | 117x117 | L | 11,744 | 3,514 | 2,132 | 1,465 | 902 |
M | 9,024 | 2,701 | 1,637 | 1,125 | 692 | ||
Q | 6,464 | 1,933 | 1,172 | 805 | 496 | ||
H | 5,288 | 1,581 | 958 | 658 | 405 | ||
28 | 129x129 | L | 12,248 | 3,669 | 2,223 | 1,528 | 940 |
M | 9,544 | 2,857 | 1,732 | 1,190 | 732 | ||
Q | 6,968 | 2,085 | 1,263 | 868 | 534 | ||
H | 5,288 | 1,581 | 958 | 658 | 405 | ||
29 | 133x133 | L | 13,048 | 3,909 | 2,369 | 1,628 | 1,002 |
M | 10,136 | 3,035 | 1,839 | 1,264 | 778 | ||
Q | 7,288 | 2,181 | 1,322 | 908 | 559 | ||
H | 5,608 | 1,677 | 1,016 | 698 | 430 | ||
30 | 137x137 | L | 13,880 | 4,158 | 2,520 | 1,732 | 1,066 |
M | 10,984 | 3,289 | 1,994 | 1,370 | 843 | ||
Q | 7,880 | 2,358 | 1,429 | 982 | 604 | ||
H | 5,960 | 1,677 | 1,016 | 698 | 430 | ||
31 | 141x141 | L | 14,744 | 4,417 | 2,677 | 1,840 | 1,132 |
M | 11,640 | 3,486 | 12,113 | 1,452 | 894 | ||
Q | 8,264 | 2,473 | 1,499 | 1,030 | 634 | ||
H | 6,344 | 1,897 | 1,150 | 790 | 486 | ||
32 | 145x145 | L | 15,640 | 4,686 | 2,840 | 1,952 | 1,201 |
M | 12,328 | 3,693 | 2,238 | 1,538 | 947 | ||
Q | 8,920 | 2,670 | 1,618 | 1,112 | 684 | ||
H | 6,760 | 2,022 | 1,226 | 842 | 518 | ||
33 | 149x149 | L | 16,568 | 4,965 | 3,009 | 2,068 | 1,273 |
M | 12,328 | 3,693 | 2,238 | 1,538 | 947 | ||
Q | 9,368 | 2,805 | 1,700 | 1,168 | 719 | ||
H | 7,208 | 2,157 | 1,307 | 898 | 553 | ||
34 | 153x153 | L | 17,528 | 5,253 | 3,183 | 2,188 | 1,273 |
M | 13,800 | 4,134 | 2,506 | 1,722 | 1,060 | ||
Q | 9,848 | 2,949 | 1,787 | 1,228 | 756 | ||
H | 7,688 | 2,301 | 1,394 | 958 | 590 | ||
35 | 157x157 | L | 18,448 | 5,529 | 3,351 | 2,303 | 1,417 |
M | 14,496 | 4,343 | 2,632 | 1,809 | 1,113 | ||
Q | 10,288 | 3,081 | 1,867 | 1,283 | 790 | ||
H | 7,888 | 2,361 | 1,431 | 983 | 605 | ||
36 | 161x161 | L | 19,472 | 5,836 | 3,537 | 2,431 | 1,496 |
M | 15,312 | 4,588 | 2,780 | 1,911 | 1,176 | ||
Q | 10,832 | 3,244 | 1,966 | 1,351 | 832 | ||
H | 8,432 | 2,524 | 1,530 | 1,051 | 647 | ||
37 | 165x165 | L | 20,528 | 6,153 | 3,729 | 2,563 | 1,577 |
M | 15,936 | 4,775 | 2,894 | 1,989 | 1,224 | ||
Q | 11,408 | 3,417 | 2,071 | 1,423 | 876 | ||
H | 8,768 | 2,625 | 1,591 | 1,093 | 673 | ||
38 | 169x169 | L | 21,616 | 6,497 | 3,927 | 2,699 | 1,661 |
M | 16,816 | 5,039 | 3,054 | 2,099 | 1,292 | ||
Q | 12,016 | 3,599 | 2,181 | 1,499 | 923 | ||
H | 9,136 | 2,735 | 1,658 | 1,139 | 701 | ||
39 | 173x173 | L | 22,496 | 6,743 | 4,087 | 2,809 | 1,729 |
M | 17,728 | 5,313 | 3,220 | 2,213 | 1,362 | ||
Q | 12,656 | 3,791 | 2,298 | 1,579 | 972 | ||
H | 9,776 | 2,927 | 1,774 | 1,219 | 750 | ||
40 | 177x177 | L | 23,648 | 7,089 | 4,296 | 2,953 | 1,817 |
M | 18,672 | 5,596 | 3,391 | 2,331 | 1,435 | ||
Q | 13,328 | 3,993 | 2,420 | 1,663 | 1,024 | ||
H | 10,208 | 3,057 | 1,852 | 1,273 | 784 |